A porous coordination-polymer crystal containing one-dimensional water chains exhibits guest-induced lattice distortion and a dielectric anomaly

被引：118

作者：

Cui, HengBo ^{[1
]}

Zhou, Biao ^{[2
]}

Long, La-Sheng ^{[3
]}

Okano, Yoshinori ^{[1
]}

Kobayashi, Hayao ^{[2
]}

Kobayashi, Akiko ^{[2
]}

机构：

[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[2] JST, CREST, Sekagaya Ku, Tokyo 1568550, Japan

[3] Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surface, Xiamen 361005, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 18期

关键词：

dielectric properties; host-guest systems; microporous materials; organic-inorganic hybrid composites; water chemistry;

D O I：

10.1002/anie.200705846

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Ice one: A porous molecular crystal with guest water molecules in the channels - [La2Cu3{NH(CH 2COO)2}6](H2O)n (see picture) - exhibits a distinct peak for the dielectric constant at 180 K (εr≈150) with the electric field parallel to the channel direction. This crystalline compound also shows a large enhancement of εr above 250 K and a characteristic antiferroelectric hysteresis coupled with a liquid-solid transition of the guest water molecules at around 350 K. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

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页码：3376 / 3380

页数：5

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